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茶树主要逆境胁迫反应及其适应逆境的生理机制

Responsesand Resistance Mechanisms of Tea Plants to Stresses – A Review

  • 摘要: 茶树是我国南方地区的主要经济作物,近年来随着全球气候变暖的影响,茶树逆境胁迫日益严重,研究其生理特性和抗逆机制亟待加强。本文对近年来国内外有关茶树抗逆的生理表现及其抗逆途径进行综述,分析了干旱、高温低温、盐、低氮磷钾、重金属等逆境胁迫对茶树生长的危害,茶树可通过生长发育调节、渗透调节、代谢调节等诸多途径提高自身抗逆性。

     

    Abstract: Global warming has broughtabout an ever-increasing stress seriously impacting the physiology andproduction of one of the major economic crops in China, Camellia sinensis.Consequently, research to further understand the stress responses and resistancemechanisms of tea plants for improved resource protection has become urgentlyneeded. This article reviews recently published domestic and foreign literaturerelated to the plant physiology and methods for the resistance enhancement. Thehazardous stresses of drought, waterlogging, high or low temperature exposure, salt,NPK deficiency, and heavy metal pollutants on the plant growth are discussed. Approachesbased on the self-regulations on growth and development, osmosis, metabolism, andothers by the plants to enhance the resistance to various stresses are presented.

     

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